I'm from Spain and I need your help.
Recently, I inherited a valuable pocket watch. It is engraving with the royal british coat of arms and below there is a monogram RW(WR) or RM(MR). Can someone tells me something about its owner ? The clock is dated 1860, but I think it could be anterior.
I enclose a photograph.

Hola, Anna, and welcome to the forums. It looks like you have a fascinating piece of royal history in your possession and I wish you luck finding information about it. I'm sure someone with suitable knowledge will help you out. I hope you enjoy your time here.